Dyfyniad APA

Gates, B., & Rogak, L. (2012). Impatient optimist: Bill gates in his own words. Collins Business.

Dyfyniad Arddull Chicago

Gates, Bill, and Lisa Rogak. Impatient Optimist: Bill Gates in His Own Words. Utterpradesh: Collins Business, 2012.

Dyfyniad MLA

Gates, Bill, and Lisa Rogak. Impatient Optimist: Bill Gates in His Own Words. Collins Business, 2012.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.